Metal wheel.



.M. LACHMAN.

gm uc nfoz- Mzum'wfiaakman 7/ @531 fM La/ QHGIMHAV Patented Feb. 13, 1917.

' rnn se ene MAURICE LACHMAN,

WHEEL COMPANY, INC., 0.?

NEW YORK, N.

LIETAL WHEEL.

Application filed June 12, 1916.

To all w 7mm it may concern:

Be it known that I, Mannicn LACHMAII,

a citizen of the United States, and a resident of New York, in the county of blew York and State of New York, have invented certain new and useful Improvements in Metal Wheels, of which the following is a specification.

My present invention relates to metal wheels the main portions of which are made of sheet metal and its object is to provide a I light construction of great strength and low cost of manufacture. The wheel may be used for light automobiles, baby carriages or any other use to which it i applicable.

To these ends the invention consists in the iniprored cmntruction of wheel hereinafter more particularly described and then specified in the claims.

in the accompanying drawings, Figure is a side elevation oi a wheel embodying present invention.

Fig. 2 is a side elevation of the disk used to provide the rim, huh and spoke portions of the wheel.

Fig. 3 is an edge iew of the same.

Fig. 4 is an enlarged transverse crosssection taken on the line 44 Fig. 1.

Fig. 5 is a still further enlarged fragmentary View of the edge of the material surrounding one of the openings in the disk and showing one of the means for thickening the edges prior to securing the same to the disk.

Fig. (i is a similar view ai'ter clamping the thickening member to the disk.

Fig. T illustrates in edge View the member employed in the form shown in Fig. l for thickening the edge of the material around the openings.

Fig. 8 is a plan view' oi a part oi the spoke portion prepared for thickening the edge according to amodilication.

Fig. 9 is a similar view showing ther stage in the operation.

Fig. 10 an enlarged transverse section hrough the spoke portion shown in Fig. 9 and showing the reinforcing member applied.

Fig. 11 is an enlarged transversesection through one edge ota spoke member and illustrates a further modification in the manner of thickening the edge. v

Fig. 132- illustretes a still further iII-Odlficu $1933.

a fur- Specification of Letters Eatent.

Serial No. 103,145.

OF NEW YORK. N. 2., ASSKGNOR TO STRUCTURAL PRESSED STEEL Y., A CGRPOBATIQN OF NEN YORK.

lni'eni'ci'l Feb. 13, 917,

Fig. 13 illustrates a further modification.

According to one in: my present invention wheel. is intended mere lllllll' of carrying out and espcciallv where ly for light loads the main part of the wheel comprises but a.

single rim portion 2, a. hub spoke members run portions.

the usual opening 5 supporting spindle.

If the wheel was con disk as so tar descrihed wh sui. ient strength to would prcr d lateral strains.

the edges may plicity of ways, 1 beam section sheet metal disk A any desired thickness.

vided with a plurality 0 erably so disposed as to little if To reinforce icken the edges prefthe openings 1, spokes and hub is'thickening of lished in a multi- (Figs. 2

a ml

This disk is prof openings prefleave a continuous portion 3 and integral 4 connecting the The openings any desired contour and of number. The hub portion is pr for the axle support it the being to also the rim portion if desired.

As above stated, used as a Wheel, or

might be employed together to It will be understood that in comprise more than a single disk a number of one disk hub and '1 may oe'of any suitable ovided. with or other structed with a plain ile it might have "it loads it resistance to disk A. to

attain an might be the same make a wheel. wheels which the edges "of each disk around the spoke openings are separately thickened or reinforced, that is, each disk and its reinforcement will be a unit and wherein the term eingl employed in the clu that the wheel as a w iins hole disk but the expression is used to distinction that a single disk e" disk is it does not imply consists of but one define the each disk is provided with the reinforced edge independent oi the other disk used to distinguish over the edges of tl parts of two mci folded edge or meeting edges. be instanccd by the which the einiorcing is secured primarily by the shape cuts in which tions or some joined either by a member folded over the class of patents may patent to Craven No. 915,829 in given to the spokes themselves.

This thickening of the edges quent reinforcing of the disk is a or disks, and is that class of patic spoke pornbcrs are a separate This and consettained in the form shown in Figs. 1, 4, 5, (Sand 7 by means of an endless strip 6 having its abutting ends 7 preferably securely united together and the whole bent to the shape of the opening 1 and of such size that it bears against the edge of the disk around theopening as indicated in Fig. 5.

suitable press the edges of the member 6 are then bent over and against the opposite surfaces of the disk as indicated in Fig. 6. Also preferably the outer edge of the disk is similarly thickened by means of the annular member 7 and if desired the opening 5 in the hub may be similarly reinforced.

Holes 8 are provided in the hub portion 3 for attachment of standard hubs as is usual in the art. The rim 2 may be provided with any style of metal tire or rubber tire carrying element of any desired type secured to the rim 2 in any suitable manner, this feature forming no part of my present invention.

Figs. 8 to 12 inclusive illustrate some of the other ways in which the edges surrounding the openings 1 may be thickened and reinforced.

In the modification shown in Figs. 8, 9

and 10 the edges of the hub 3, spoke i and rim 2 surrounding the opening are split for a short distance inward and the edge portions bent in opposite directions forming ears 9, some-projecting laterally from the plane of the disk A on one side while the others project similarly from the opposite side. Continuous members 10 similar to the members 6 in the previous form are clamped around and connect thevarious projecting ears 9 on opposite sides of the disk. In the modification shown in Fig. 11 the disk at the edges around the openings 1 is provided with a flange 11 projecting laterally from one surface and the thickening member 12 is clamped over this flange and provided with a rib 13 engaging and projecting from the opposite surface of the disk.

In Fig. 12 the thickened edge is integral withthe disk, it being provided by doubling the metal at the edgesurrounding the opening back upon itself in any desired manner in a suitable press.

The doubling of the metal around the openings to thicken the edges by the material 1 itself may also be done as indicated in Fig. 13 in which the metal is so folded or shaped By means of a,

as to form a hollow the opening.

It will be understood that the various tube 15 which bounds v Ways shownand described of carrying this invention into practice are for the purpose of illustration only and are not to be considered as limiting the scope except as may be specified in the appended claims.

That form of my invention illustrated in described is not 7 since it forms the force said material and form a spoke mem -f ber substantially I-shaped in cross section. 2. A. metal wheel lncludnig a single sheet metal disk having a plurality of openings therein-to form hub, rim and spoke portions and a separate member secured to the material of the disk at the edge of said openings and adapted to thicken said edges on both faces of said disk and reinforce said disk against lateral strains.

3. A.1netal wheel including a single sheet metal disk having openings therein to form rim, hub and spoke portions and a thickening element on the edge of the material completely surrounding each opening and projecting laterally in opposite directions from the faces of the disk.

4. In a metal wheel, a sheet metal dis-l0 having openings to form spokes integral with the continuous rim and center, combined with a continuous strip of metal bent around theedge of the metal constituting the edge of the disk around said openings and against the opposite surfaces.

Signed at New York, in the county of New York and State of New York, this 10thday of June, A. D. 1916.

MAURICE LACHMAN.

l/Vitnesses F. B. TOWNSEND, IRENE LEFKOWITZ. 

